| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package org.gvsig.fmap.mapcontext.layers.operations;

import org.gvsig.fmap.mapcontext.exceptions.LoadLayerException;

import org.gvsig.fmap.mapcontext.layers.CancelationException;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.LayerCollectionListener;

/**

 * <p>Interface with methods for a collection of layers.</p> 

 */

public interface LayerCollection {

        /**

         * <p>Adds a listener of events produced on a collection of layers.</p>

         *

         * @param listener a <code>LayerCollectionListener</code>

         * 

         * @see #removeLayerCollectionListener(LayerCollectionListener)

         */

        public void addLayerCollectionListener(LayerCollectionListener listener);

        /**

         * <p>Removes a listener of events produced on a collection of layers.</p>

         *

         * @param listener a <code>LayerCollectionListener</code>

         * 

         * @see #addLayerCollectionListener(LayerCollectionListener)

         */

        public void removeLayerCollectionListener(LayerCollectionListener listener);

        /**

         * <p>Adds a new layer to this collection.</p>

         *

         * @param layer the new layer

         *

         * @throws CancelationException any exception produced during the cancellation of the driver.

         * @throws LoadLayerException any exception produced loading the layer.

         * 

         * @see #removeLayer(FLayer)

         * @see #removeLayer(int)

         * @see #removeLayer(String)

         */

        public void addLayer(FLayer layer) throws CancelationException, LoadLayerException;

        /**

         * <p>Moves a layer of the collection to another position in internal list. It doesn't consider sub-nodes of layers.</p>

         *

         * @param from origin position

         * @param to destination position

         *

         * @throws CancelationException any exception produced during the cancellation of the driver.

         */

        public void moveTo(int from, int to) throws CancelationException;

        /**

         * <p>Removes a layer from this collection.</p>

         *

         * @param lyr a layer

         *

         * @throws CancelationException any exception produced during the cancellation of the driver.

         * 

         * @see #removeLayer(int)

         * @see #removeLayer(String)

         * @see #addLayer(FLayer)

         */

        public void removeLayer(FLayer lyr) throws CancelationException;

        /**

         * <p>Removes a layer using its identifier.</p>

         *

         * @param idLayer layer identifier

         * 

         * @see #removeLayer(FLayer)

         * @see #removeLayer(String)

         * @see #addLayer(FLayer)

         */

        public void removeLayer(int idLayer);

        /**

         * <p>Removes a layer using its name.</p>

         *

         * @param layerName the name of the layer

         * 

         * @see #removeLayer(FLayer)

         * @see #removeLayer(int)

         * @see #addLayer(FLayer)

         */

        public void removeLayer(String layerName);

        /**

         * <p>Returns an array with all visible layers in this collection.</p>

         *

         * @return array with first-level visible layer nodes, or <code>null</code> if no there is no layer visible

         * 

         * @see #setAllVisibles(boolean)

         */

        public FLayer[] getVisibles();

        /**

         * <p>Returns an array with all active layers in this collection.</p>

         *

         * @return array with first-level active layer nodes, or <code>null</code> if no there is no layer actived

         * 

         * @see #setAllActives(boolean)

         */

        public FLayer[] getActives();

        /**

         * <p>Returns the ith-output directed son (from bottom up) of this collection.</p>

         *

         * @param index index of the ith-output layer in this collection.

         *

         * @return a layer

         * 

         * @see #getLayer(String)

         */

        public FLayer getLayer(int index);

        /**

         * <p>Returns a first-level layer of this collection, using its name.</p>

         *

         * @param layerName name of a layer of this collection

         *

         * @return a layer

         * 

         * @see #getLayer(int)

         */

        public FLayer getLayer(String layerName);

        /**

         * <p>Returns the number of layers that are at the first level inside this one.</p>

         * 

         * <p>Doesn't counts the sublayers (of <code>FLayers</code> subnodes).</p>

         *

         * @return number >= 0 with layers that are at the same first-level

         * 

         * @see #getLayer(int)

         * @see #getLayer(String)

         */

        public int getLayersCount();

        /**

         * <p>Changes the status of all layers to active or inactive.</p>

         *

         * @param active a boolean value

         * 

         * @see #getActives()

         */

        public void setAllActives(boolean active);

        /**

         * <p>Changes the status of all layers to visible or invisible.</p>

         *

         * @param visible a boolean value

         * 

         * @see #getVisibles()

         */

        public void setAllVisibles(boolean visible);

}